<?php
/**
 * 获得文件的mime type类型.
 *
 * @author xiaobing.meng
 */
class MimeTypes
{
    public static $mime_types = array(
        'apk'     => 'application/vnd.android.package-archive',
        '3gp'     => 'video/3gpp', 'ai' => 'application/postscript',
        'aif'     => 'audio/x-aiff', 'aifc' => 'audio/x-aiff',
        'aiff'    => 'audio/x-aiff', 'asc' => 'text/plain',
        'atom'    => 'application/atom+xml', 'au' => 'audio/basic',
        'avi'     => 'video/x-msvideo', 'bcpio' => 'application/x-bcpio',
        'bin'     => 'application/octet-stream', 'bmp' => 'image/bmp',
        'cdf'     => 'application/x-netcdf', 'cgm' => 'image/cgm',
        'class'   => 'application/octet-stream',
        'cpio'    => 'application/x-cpio',
        'cpt'     => 'application/mac-compactpro',
        'csh'     => 'application/x-csh', 'css' => 'text/css',
        'dcr'     => 'application/x-director', 'dif' => 'video/x-dv',
        'dir'     => 'application/x-director', 'djv' => 'image/vnd.djvu',
        'djvu'    => 'image/vnd.djvu',
        'dll'     => 'application/octet-stream',
        'dmg'     => 'application/octet-stream',
        'dms'     => 'application/octet-stream',
        'doc'     => 'application/msword', 'dtd' => 'application/xml-dtd',
        'dv'      => 'video/x-dv', 'dvi' => 'application/x-dvi',
        'dxr'     => 'application/x-director',
        'eps'     => 'application/postscript', 'etx' => 'text/x-setext',
        'exe'     => 'application/octet-stream',
        'ez'      => 'application/andrew-inset', 'flv' => 'video/x-flv',
        'gif'     => 'image/gif', 'gram' => 'application/srgs',
        'grxml'   => 'application/srgs+xml',
        'gtar'    => 'application/x-gtar', 'gz' => 'application/x-gzip',
        'hdf'     => 'application/x-hdf',
        'hqx'     => 'application/mac-binhex40', 'htm' => 'text/html',
        'html'    => 'text/html', 'ice' => 'x-conference/x-cooltalk',
        'ico'     => 'image/x-icon', 'ics' => 'text/calendar',
        'ief'     => 'image/ief', 'ifb' => 'text/calendar',
        'iges'    => 'model/iges', 'igs' => 'model/iges',
        'jnlp'    => 'application/x-java-jnlp-file', 'jp2' => 'image/jp2',
        'jpe'     => 'image/jpeg', 'jpeg' => 'image/jpeg',
        'jpg'     => 'image/jpeg', 'js' => 'application/x-javascript',
        'kar'     => 'audio/midi', 'latex' => 'application/x-latex',
        'lha'     => 'application/octet-stream',
        'lzh'     => 'application/octet-stream',
        'm3u'     => 'audio/x-mpegurl', 'm4a' => 'audio/mp4a-latm',
        'm4p'     => 'audio/mp4a-latm', 'm4u' => 'video/vnd.mpegurl',
        'm4v'     => 'video/x-m4v', 'mac' => 'image/x-macpaint',
        'man'     => 'application/x-troff-man',
        'mathml'  => 'application/mathml+xml',
        'me'      => 'application/x-troff-me', 'mesh' => 'model/mesh',
        'mid'     => 'audio/midi', 'midi' => 'audio/midi',
        'mif'     => 'application/vnd.mif', 'mov' => 'video/quicktime',
        'movie'   => 'video/x-sgi-movie', 'mp2' => 'audio/mpeg',
        'mp3'     => 'audio/mpeg', 'mp4' => 'video/mp4',
        'mpe'     => 'video/mpeg', 'mpeg' => 'video/mpeg',
        'mpg'     => 'video/mpeg', 'mpga' => 'audio/mpeg',
        'ms'      => 'application/x-troff-ms', 'msh' => 'model/mesh',
        'mxu'     => 'video/vnd.mpegurl', 'nc' => 'application/x-netcdf',
        'oda'     => 'application/oda', 'ogg' => 'application/ogg',
        'ogv'     => 'video/ogv', 'pbm' => 'image/x-portable-bitmap',
        'pct'     => 'image/pict', 'pdb' => 'chemical/x-pdb',
        'pdf'     => 'application/pdf',
        'pgm'     => 'image/x-portable-graymap',
        'pgn'     => 'application/x-chess-pgn', 'pic' => 'image/pict',
        'pict'    => 'image/pict', 'png' => 'image/png',
        'pnm'     => 'image/x-portable-anymap',
        'pnt'     => 'image/x-macpaint', 'pntg' => 'image/x-macpaint',
        'ppm'     => 'image/x-portable-pixmap',
        'ppt'     => 'application/vnd.ms-powerpoint',
        'ps'      => 'application/postscript', 'qt' => 'video/quicktime',
        'qti'     => 'image/x-quicktime', 'qtif' => 'image/x-quicktime',
        'ra'      => 'audio/x-pn-realaudio',
        'ram'     => 'audio/x-pn-realaudio', 'ras' => 'image/x-cmu-raster',
        'rdf'     => 'application/rdf+xml', 'rgb' => 'image/x-rgb',
        'rm'      => 'application/vnd.rn-realmedia',
        'roff'    => 'application/x-troff', 'rtf' => 'text/rtf',
        'rtx'     => 'text/richtext', 'sgm' => 'text/sgml',
        'sgml'    => 'text/sgml', 'sh' => 'application/x-sh',
        'shar'    => 'application/x-shar', 'silo' => 'model/mesh',
        'sit'     => 'application/x-stuffit',
        'skd'     => 'application/x-koan', 'skm' => 'application/x-koan',
        'skp'     => 'application/x-koan', 'skt' => 'application/x-koan',
        'smi'     => 'application/smil', 'smil' => 'application/smil',
        'snd'     => 'audio/basic', 'so' => 'application/octet-stream',
        'spl'     => 'application/x-futuresplash',
        'src'     => 'application/x-wais-source',
        'sv4cpio' => 'application/x-sv4cpio',
        'sv4crc'  => 'application/x-sv4crc', 'svg' => 'image/svg+xml',
        'swf'     => 'application/x-shockwave-flash',
        't'       => 'application/x-troff', 'tar' => 'application/x-tar',
        'tcl'     => 'application/x-tcl', 'tex' => 'application/x-tex',
        'texi'    => 'application/x-texinfo',
        'texinfo' => 'application/x-texinfo', 'tif' => 'image/tiff',
        'tiff'    => 'image/tiff', 'tr' => 'application/x-troff',
        'tsv'     => 'text/tab-separated-values', 'txt' => 'text/plain',
        'ustar'   => 'application/x-ustar',
        'vcd'     => 'application/x-cdlink', 'vrml' => 'model/vrml',
        'vxml'    => 'application/voicexml+xml', 'wav' => 'audio/x-wav',
        'wbmp'    => 'image/vnd.wap.wbmp',
        'wbxml'   => 'application/vnd.wap.wbxml', 'webm' => 'video/webm',
        'wml'     => 'text/vnd.wap.wml',
        'wmlc'    => 'application/vnd.wap.wmlc',
        'wmls'    => 'text/vnd.wap.wmlscript',
        'wmlsc'   => 'application/vnd.wap.wmlscriptc',
        'wmv'     => 'video/x-ms-wmv', 'wrl' => 'model/vrml',
        'xbm'     => 'image/x-xbitmap', 'xht' => 'application/xhtml+xml',
        'xhtml'   => 'application/xhtml+xml',
        'xls'     => 'application/vnd.ms-excel',
        'xml'     => 'application/xml', 'xpm' => 'image/x-xpixmap',
        'xsl'     => 'application/xml', 'xslt' => 'application/xslt+xml',
        'xul'     => 'application/vnd.mozilla.xul+xml',
        'xwd'     => 'image/x-xwindowdump', 'xyz' => 'chemical/x-xyz',
        'zip'     => 'application/zip', );

    public static function get_mimetype($ext)
    {
        return isset(self::$mime_types[$ext]) ? self::$mime_types[$ext] : 'application/octet-stream';
    }
}
